超声和手工龈下刮治对龈下微生物影响的研究

目的 :比较Perioproline超声龈下刮治和手工龈下刮治对龈下微生物的影响 ,评价Periopro line超声龈下刮治系统的临床疗效和工作效率。方法 :选取慢性成人牙周炎患者 7名 ,共 2 0个左右基本对称牙被纳入研究 ,随机分入实验组 (超声组 )和对照组 (手工组 )。记录治疗时间和治疗前、治疗后 0d、7d和 14d的PD ,BOP值 ,及采集龈下菌斑样本培养鉴定 ,观察比较总菌落形成单位 (CFU)和牙周可疑致病菌检出率及检出量的变化。结果 :两组在治疗后PD、BOP值及龈下菌斑总量 (CFU)和牙周可疑致病菌数量及检出率均显著下降 (P <0 .0 5) ;治疗前后各时段组间均无明显差别 ;超声组的治疗时间明显少于手工组 (P <0 .0 5)。结论 :Perioproline超声龈下刮治和手工龈下刮治均可有效减少龈下微生物的量 ,改善患牙的牙周临床状况 ,且两者间无差异 ,但Perioproline超声龈下刮治明显较手工刮治节省时间

Study of microbiological and clinical effects of subgingival scaling with ultrasonic and hand instruments

AIM:To assess the clinical and microbiologi c effects of subgingival scaling with ultrasonic (perio proline) and hand instrume nts.METHODS:20 symmetric teeth in 7 patients with periodontiti s were selected and randomly assigned by a split mouth design to test(ultrasonic ) or control(hand).The time required for each instrumentation was made during th e treatment and periodontal indices(BOP, PD)were recorded just before and 0,7,14 days after treatment. The effects of treatments on the subgingival microflora w ere evaluated by culture studies of subgingival plaque samples taken before and 0,7,14 days after subgingival scaling.RESULTS:The hand and ultrasonic instrumentations were equally effective in reducing PD and BOP. There is no difference between two groups.Both treatments reduced the count of total colony forming unit(CFU) and periodontal pathogens. While the treatment with the perio proline device required less time than with hand instrumentation.CONCLUSION:The results indicate that subgingival scaling with perio proline could effectively improve clinical and microbiologic parameters of patients with periodontitis. And it is a highly efficient device comparing with hand instrument.